They only talk about the 6600 guests as part of that purchase. The video talks about having 1085 employees in the different kitchens. They need to eat as well, so does their meals come from this same stock of food? There's also the rest of the staff like engineering, bridge crew, cleaning, etc. I'm guessing there's a couple hundred more employees at least. I'm pretty sure I'm thinking way more about this than the producer's target audience though.
The top ships there - Crystal, SeaDream, SilverSea, SeaBourn - are all small ultra-luxury vessels. C̵a̵r̵i̵b̵b̵e̵a̵n̵ ̵P̵r̵i̵n̵c̵e̵s̵s̵,̵ ̵t̵h̵e̵ ̵o̵n̵l̵y̵ ̵R̵o̵y̵a̵l̵ ̵C̵a̵r̵i̵b̵b̵e̵a̵n̵ ̵v̵e̵s̵s̵e̵l̵ ̵o̵n̵ ̵t̵h̵e̵ ̵l̵i̵s̵t̵ ̵[̵0̵]̵ ̵h̵a̵s̵ ̵a̵ ̵p̵a̵s̵s̵e̵n̵g̵e̵r̵:̵c̵r̵e̵w̵ ̵o̵f̵ ̵0̵.̵3̵7̵ ̵-̵ ̵a̵n̵d̵ ̵h̵a̵l̵f̵ ̵t̵h̵e̵ ̵p̵a̵s̵s̵e̵n̵g̵e̵r̵ ̵c̵a̵p̵a̵c̵i̵t̵y̵ ̵o̵f̵ ̵t̵h̵e̵ ̵s̵h̵i̵p̵ ̵i̵n̵ ̵t̵h̵e̵ ̵v̵i̵d̵e̵o̵.̵ ̵S̵o̵ ̵I̵'̵d̵ ̵i̵m̵a̵g̵i̵n̵e̵ ̵0̵.̵3̵ ̵w̵o̵u̵l̵d̵ ̵b̵e̵ ̵a̵ ̵g̵o̵o̵d̵ ̵e̵s̵t̵i̵m̵a̵t̵e̵ ̵f̵o̵r̵ ̵a̵ ̵s̵h̵i̵p̵ ̵t̵w̵i̵c̵e̵ ̵t̵h̵e̵ ̵s̵i̵z̵e̵ ̵-̵ ̵r̵i̵g̵h̵t̵ ̵a̵r̵o̵u̵n̵d̵ ̵2̵0̵0̵0̵ ̵c̵r̵e̵w̵.̵ EDIT2: Caribbean Princess is not a Royal Caribbean ship, and Royal Caribbean's naming scheme is "* of the Seas" not "Caribbean *". Really not sure how I messed that one up.
EDIT: But we can do better than that! The Oasis-class of ships are the only ones with a ~6600 passenger capacity, and they of course all have wikipedia pages [1]. And that lists the crew at 2200, for a ratio of 0.33.
Thank you for quickly acknowledging and fixing it--a simple error anyone could make. It also appears you are right that my claim of >.4 is too high. Browsing the listings, it looks like .3 is probably closer.
I think I got things mixed up with Carnival, which does have a naming convention of "Carnival *". Either way, finding the actual ship on wikipedia and calculating from there is going to be better than extrapolating from other ships on the list. (And the post now does that)
Interesting to compare with the valley. Google food and drink cost per employee per day was around $16 when I last heard. Dropbox was the highest around $60, although this was a few years ago.
Cruises are generally feeding each passenger 3+ meals per day though. And people tend to overeat on vacation as well.
How many meals does the average tech employee eat at work per day? My initial guess would be around 1.5, with the biggest meal of the day, dinner, usually being eaten outside of work. That would mean google spends more than twice as much per meal than cruises do.